Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMethodDataAccessor.java @ 23366:45168ac6d3bc
Merge.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Fri, 29 Apr 2016 11:10:18 +0200 |
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1 /* |
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package jdk.vm.ci.hotspot; |
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24 |
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25 import static jdk.vm.ci.hotspot.HotSpotVMConfig.config; |
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26 import jdk.vm.ci.meta.JavaMethodProfile; |
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27 import jdk.vm.ci.meta.JavaTypeProfile; |
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28 import jdk.vm.ci.meta.ProfilingInfo; |
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29 import jdk.vm.ci.meta.TriState; |
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30 |
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31 /** |
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32 * Interface for accessor objects that encapsulate the logic for accessing the different kinds of |
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33 * data in a HotSpot methodDataOop. This interface is similar to the interface {@link ProfilingInfo} |
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34 * , but most methods require a MethodDataObject and the exact position within the methodData. |
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35 */ |
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36 public interface HotSpotMethodDataAccessor { |
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37 |
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38 /** |
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39 * {@code DataLayout} tag values. |
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40 */ |
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41 enum Tag { |
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42 No(config().dataLayoutNoTag), |
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43 BitData(config().dataLayoutBitDataTag), |
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44 CounterData(config().dataLayoutCounterDataTag), |
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45 JumpData(config().dataLayoutJumpDataTag), |
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46 ReceiverTypeData(config().dataLayoutReceiverTypeDataTag), |
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47 VirtualCallData(config().dataLayoutVirtualCallDataTag), |
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48 RetData(config().dataLayoutRetDataTag), |
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49 BranchData(config().dataLayoutBranchDataTag), |
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50 MultiBranchData(config().dataLayoutMultiBranchDataTag), |
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51 ArgInfoData(config().dataLayoutArgInfoDataTag), |
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52 CallTypeData(config().dataLayoutCallTypeDataTag), |
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53 VirtualCallTypeData(config().dataLayoutVirtualCallTypeDataTag), |
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54 ParametersTypeData(config().dataLayoutParametersTypeDataTag), |
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55 SpeculativeTrapData(config().dataLayoutSpeculativeTrapDataTag); |
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56 |
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57 private final int value; |
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58 |
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59 Tag(int value) { |
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60 this.value = value; |
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61 } |
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62 |
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63 public int getValue() { |
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64 return value; |
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65 } |
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66 |
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67 public static Tag getEnum(int value) { |
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68 Tag result = values()[value]; |
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69 assert value == result.value; |
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70 return result; |
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71 } |
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72 } |
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73 |
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74 /** |
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75 * Returns the {@link Tag} stored in the LayoutData header. |
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77 * @return tag stored in the LayoutData header |
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78 */ |
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79 Tag getTag(); |
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80 |
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81 /** |
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82 * Returns the BCI stored in the LayoutData header. |
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14906 | 84 * @return An integer ≥ 0 and ≤ Short.MAX_VALUE, or -1 if not supported. |
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85 */ |
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86 int getBCI(HotSpotMethodData data, int position); |
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87 |
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88 /** |
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89 * Computes the size for the specific data at the given position. |
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14906 | 91 * @return An integer > 0. |
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92 */ |
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93 int getSize(HotSpotMethodData data, int position); |
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94 |
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95 JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position); |
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96 |
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97 JavaMethodProfile getMethodProfile(HotSpotMethodData data, int position); |
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98 |
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99 double getBranchTakenProbability(HotSpotMethodData data, int position); |
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100 |
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101 double[] getSwitchProbabilities(HotSpotMethodData data, int position); |
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102 |
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103 TriState getExceptionSeen(HotSpotMethodData data, int position); |
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104 |
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105 TriState getNullSeen(HotSpotMethodData data, int position); |
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106 |
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107 int getExecutionCount(HotSpotMethodData data, int position); |
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108 |
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109 StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos); |
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110 } |